641
FZUS53 KLOT 290842
NSHLOT
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
342 AM CDT WED OCT 29 2025
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN
WAVES ARE PROVIDED AS A RANGE OF SIGNIFICANT WAVE HEIGHTS, WHICH
IS THE AVERAGE OF THE HIGHEST 1/3 OF THE WAVES, ALONG WITH THE
AVERAGE HEIGHT OF THE HIGHEST 10 PERCENT OF THE WAVES WHICH WILL
OCCASIONALLY BE ENCOUNTERED.
LMZ740-741-291530-
WINTHROP HARBOR TO WILMETTE HARBOR IL-
WILMETTE HARBOR TO NORTHERLY ISLAND IL-
342 AM CDT WED OCT 29 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING
TODAY
EAST WINDS TO 30 KT BECOMING NORTHEAST 20 TO 25 KT IN THE
AFTERNOON. MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY IN THE
AFTERNOON. WAVES 6 TO 9 FT OCCASIONALLY TO 12 FT SUBSIDING TO 5
TO 8 FT OCCASIONALLY TO 10 FT.
TONIGHT
NORTHEAST WINDS 20 TO 25 KT. PARTLY CLOUDY. WAVES 4 TO
7 FT OCCASIONALLY TO 9 FT.
THURSDAY
NORTH WINDS 10 TO 20 KT. PARTLY CLOUDY. WAVES 4 TO
6 FT OCCASIONALLY TO 8 FT.
THURSDAY NIGHT
NORTHWEST WINDS 10 TO 15 KT. MOSTLY CLOUDY.
WAVES 3 TO 6 FT SUBSIDING TO 2 TO 4 FT.
LMZ742-743-291530-
NORTHERLY ISLAND TO CALUMET HARBOR IL-
CALUMET HARBOR IL TO GARY IN-
342 AM CDT WED OCT 29 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING
TODAY
EAST WINDS TO 30 KT BECOMING NORTHEAST 20 TO 25 KT IN THE
AFTERNOON. MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY LATE IN THE
AFTERNOON. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
TONIGHT
NORTHEAST WINDS 20 TO 25 KT. PARTLY CLOUDY. WAVES 4 TO
7 FT OCCASIONALLY TO 9 FT.
THURSDAY
NORTH WINDS 15 TO 20 KT. PARTLY CLOUDY. WAVES 4 TO
6 FT OCCASIONALLY TO 8 FT.
THURSDAY NIGHT
NORTHWEST WINDS 10 TO 15 KT. MOSTLY CLOUDY.
WAVES 3 TO 6 FT SUBSIDING TO 2 TO 4 FT.
LMZ744-745-291530-
GARY TO BURNS HARBOR IN-BURNS HARBOR TO MICHIGAN CITY IN-
342 AM CDT WED OCT 29 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON
TODAY
EAST WINDS 20 TO 25 KT BECOMING NORTHEAST IN THE
AFTERNOON. PARTLY CLOUDY EARLY IN THE MORNING THEN BECOMING
MOSTLY SUNNY. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
TONIGHT
NORTHEAST WINDS 20 TO 25 KT. PARTLY CLOUDY. WAVES 4 TO
7 FT OCCASIONALLY TO 9 FT.
THURSDAY
NORTH WINDS 20 TO 25 KT. PARTLY CLOUDY. WAVES 4 TO
6 FT OCCASIONALLY TO 8 FT.
THURSDAY NIGHT
NORTHWEST WINDS 10 TO 20 KT. SLIGHT CHANCE OF
SHOWERS. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
PETR
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